Elmira-1, also known as Don Sinn Detention, is a private earth dam located in Whalen, Olmsted County, Minnesota.
Wind
Humidity
Built in 1981 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along Trout Run Creek-TR. Standing at a height of 39 feet with a storage capacity of 57 acre-feet, Elmira-1 covers a surface area of 2.2 acres and has a drainage area of 0.69 square miles.
Managed by the MNDNR EWR, Elmira-1 is state-regulated and undergoes regular inspections to ensure its fair condition. Despite being classified as low hazard potential, the dam is considered to have a very high risk level, reflecting its critical importance in mitigating flooding risks in the area. With a controlled spillway and uncontrolled outlet gates, Elmira-1 plays a crucial role in safeguarding the surrounding community from potential water-related disasters.
For water resource and climate enthusiasts, Elmira-1 presents a fascinating case study in flood risk management and dam infrastructure in Minnesota. As a key component of the state's flood protection measures, this earth dam serves as a vital line of defense against the destructive forces of nature, highlighting the importance of sustainable water resource management and climate resilience in the face of increasing environmental challenges.
Year Completed |
1981 |
Dam Height |
39 |
River Or Stream |
TROUT RUN CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
2.2 |
Drainage Area |
0.69 |
Nid Storage |
57 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
39 |
Root River Near Pilot Mound
|
303cfs |
South Fork Zumbro River At Rochester
|
85cfs |
Mississippi River At Winona
|
13700cfs |
Zumbro River At Kellogg
|
1550cfs |
Root River Near Houston
|
472cfs |
South Fork Root River Near Houston
|
209cfs |